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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MPC8315CVRADDA датащи(PDF) 31 Page - Freescale Semiconductor, Inc |
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MPC8315CVRADDA датащи(HTML) 31 Page - Freescale Semiconductor, Inc |
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31 / 106 page  MPC8315E PowerQUICC II Pro Processor Hardware Specifications, Rev. 2 Freescale Semiconductor 31 Ethernet: Three-Speed Ethernet, MII Management This figure shows the RGMII and RTBI AC timing and multiplexing diagrams. Figure 16. RGMII and RTBI AC Timing and Multiplexing Diagrams 9.3 Ethernet Management Interface Electrical Characteristics The electrical characteristics specified here apply to MII management interface signals management data input/output (MDIO) and management data clock (MDC). The electrical characteristics for MII, RMII, RGMII, and RTBI are specified in Section 9.1, “eTSEC (10/100/1000 Mbps)—MII/RMII/RGMII/RTBI Electrical Characteristics.” 9.3.1 MII Management DC Electrical Characteristics The MDC and MDIO are defined to operate at a supply voltage of 3.3 V. The DC electrical characteristics for MDIO and MDC are provided in this table. Table 30. MII Management DC Electrical Characteristics Powered at 3.3 V Parameter Symbol Conditions Min Max Unit Supply voltage (3.3 V) NVDD — — 3.0 3.6 V Output high voltage VOH IOH = –1.0 mA NVDD = Min 2.10 NVDD + 0.3 V Output low voltage VOL IOL = 1.0 mA NVDD = Min VSS 0.50 V Input high voltage VIH —— 2.00 — V Input low voltage VIL — — — 0.80 V Input high current IIH NVDD = Max VIN 1 = 2.1 V — 40 A GTX_CLK tRGT tRGTH tSKRGT TX_CTL TXD[8:5] TXD[7:4] TXD[9] TXERR TXD[4] TXEN TXD[3:0] (At Transmitter) TXD[8:5][3:0] TXD[7:4][3:0] TX_CLK (At PHY) RX_CTL RXD[8:5] RXD[7:4] RXD[9] RXERR RXD[4] RXDV RXD[3:0] RXD[8:5][3:0] RXD[7:4][3:0] RX_CLK (At Controller) tSKRGT tSKRGT tSKRGT |
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